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    • 1. 发明授权
    • Index table control
    • 索引表控制
    • US3686979A
    • 1972-08-29
    • US3686979D
    • 1970-12-07
    • CINCINNATI GILBERT MACHINE TOO
    • PETRI WILLIAM EDWARD JRFROESE RICHARD JOSEPH
    • B23Q16/06B23Q21/00
    • B23Q16/065Y10T74/1488Y10T74/1494Y10T408/545
    • An air bearing supported rotary index table for machine tools is provided with an automatic table index locking mechanism which is operable to allow the table to be moved past undesired index positions and to be stopped and locked at a desired index position. The locking mechanism is provided with time delay controls which actuate it only in response to the presence of the table at a given index position for a predetermined minimum period of time. In use, discrimination between desired and undesired index positions is achieved by movement past undesired index positions, and very slow movement near the desired index position.
    • 一种用于机床的空气轴承支撑的旋转分度台设置有自动工作台索引锁定机构,其可操作以允许工作台移动经过不期望的索引位置并被停止并锁定在期望的索引位置。 锁定机构设置有时间延迟控制,其仅在响应于在给定索引位置处存在桌子达预定的最小时间段时启动它。 在使用中,期望和非期望指标位置之间的区别通过移动过去不期望的索引位置以及在期望指数位置附近非常慢的移动来实现。